Syringe



(No Model.) i

' V. C. V-ANT- WO-UD.

-sYRINGfE No. 466,587. patented Jan. 5,1892..v

THE Noam: PaTEns cc., Primo-umn., VASMNGTUN, n. c.

UNITED STATES PATENT OEEICE.l

VICTOR O. YANT WOUD, OF BROOKLYN, NEY YORK.

SYRINGE.

SPECIFICATION forming part of Letters Patent No'.

466,587, dated January 5, 1892.

Application tiled August 31, 1891. Serial No.4041312. (No model.)

To aZZ whom #may concern: A

Be it known that I, VICTOR C. VANT Woon, a citizen of the United States,residing at Brooklyn, in the county of Kings and State of N ew York,have invented certain new and useful Improvements in Valves forSyringes, rbc.; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

-My invention relates to automatic valves for syringes, sprayers, andother articles; and it consists of certain novel featuresofconstruction, fully disclosed in the accompanying drawings and describedin the specication following, and being more particularly pointed outinthe claims.

In the drawings, Figure l syringe with sectional views of 'my improvedvalve attached thereto. Fig. 2 is asectonal view of my improved valve.

Similar letters of reference indicate identical parts throughout;

represents a The object of my invention is to simplifyY the constructionnow in use and to lessen the cost of manufacture, and to this end Iconstruct the valve-chamber and the passages leading thereto so that thewalls of the same shall have sufficient elasticity to yield to permitthe insertion of the valve to its proper place and then return to theirnormal position, and in certain constructions-and combination of parts,all of which are fully disclosed in the following description andclaims. A

As shown in thedrawings, the valve seat and casing A is cast integrallyfrom rubber or other yielding substance, and has a longitudinal openinga passing through it, the said opening being enlarged intermediate itsextremities to form a valve-chamber a2 for the valve B.` Thevalve-chamber a2 is rounded at one end to form a seat a3 for thesimilarlyshaped face b of the valve B, and is provided at its oppositeend with an annular shoulder a4, having projections d5, with spacesbetween them for the escape of a iiuid.

The valve B is constructed, preferably, of the form shown in thedrawings, having a fiat and an oval inclined face and being providedwith a guiding-stem a7.

Upon the completion of the valve seat and ticity to `with interiorelastic Walls,

casing the valve B is forced to its place in the valve-chamber o2through the longitudinal opening a, the flat face being opposite theprojection a5 when in place.

The operation of the valve, as shownvin Fig. l, is obvious. The bulb Obeing compressed, the valve B is forced to its seat and the valve B isforced upon the projection a5, thus forcing the fluid out between theprojection a? through the exit a6. YUpon releasing the bulb O theopposite result follows, the valve B being forced to its seat andclosed, the valve B being opened.

I- do not wish to be limited to my exact construction, as many detailsmay be altered ventiOn, so long as the walls of the valvechamber and thepassages leading thereto are given' such a degree of elasticity as topermit the insertion of the valve by the yielding of said Walls. It isalso evident that the valve maybe provided with the projection asinsteadof the annular shoulder a4, and the oval face of the valve maybe madecone-shaped, and many other modifications may be made which will befollowed by satisfactory results.

lVhat I claim, and desire to secure by I-.etters Patent, is-

l. The herein-described valve-casing,formed integrally and having avalve-chamber within the same and inlet and outlet passages or openingsto said chamber, the walls of said passages and chamber havingsufficient elassaid passages into said chamber through the yielding ofthe walls, substantially as described. l e 2. The combination of anintegral valvecasing provided with a longitudinal opening and having avalve-chamber within the same, said casing and said chamber beingprovided a valve having an inclined and a flat face, and projectionsinterposed between said flat face and a wall of the chamber, saidprojections being made integral therewith, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.Y

VICTOR C. VANT WOUD.

Witnesses: l

CHARLES KAHL,

CHARLES W. INNEs.

permit the valve to be forced through v IOO

